Having looked at the seriousness of the fire in this one, if that had happened on immediate climb out, I think the odds would have been against them getting back.
They were stationary on the ground with a five knot prevailing wind from the left blowing the fire against the fuselage. Airborne the relative wind would have been ~150-200 knots blowing the fire aft along and through the engine. I doubt very much they would have had any fuselage damage at all. That's not to say they wouldn't have had a serious problem, just not the fuselage damage that resulted in this case.